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40331440000 = 2754504143
BaseRepresentation
bin100101100011111100…
…001110111110000000
310212002202201102201001
4211203330032332000
51130044322040000
630310014421344
72625310404115
oct454374167600
9125082642631
1040331440000
11161170568a5
127996b01854
133a5993a8c7
141d4860690c
1510b0b5646a
hex963f0ef80

40331440000 has 80 divisors (see below), whose sum is σ = 100402798320. Its totient is φ = 16132544000.

The previous prime is 40331439989. The next prime is 40331440007. The reversal of 40331440000 is 4413304.

40331440000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 40331440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40331440007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 172072 + ... + 332071.

It is an arithmetic number, because the mean of its divisors is an integer number (1255034979).

Almost surely, 240331440000 is an apocalyptic number.

40331440000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40331440000 is an abundant number, since it is smaller than the sum of its proper divisors (60071358320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40331440000 is an frugal number, since it uses more digits than its factorization.

40331440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504177 (or 504150 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40331440000 its reverse (4413304), we get a palindrome (40335853304).

The spelling of 40331440000 in words is "forty billion, three hundred thirty-one million, four hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3200 4000 5000 8000 10000 16000 20000 40000 80000 504143 1008286 2016572 2520715 4033144 5041430 8066288 10082860 12603575 16132576 20165720 25207150 32265152 40331440 50414300 63017875 64530304 80662880 100828600 126035750 161325760 201657200 252071500 315089375 322651520 403314400 504143000 630178750 806628800 1008286000 1260357500 1613257600 2016572000 2520715000 4033144000 5041430000 8066288000 10082860000 20165720000 40331440000